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Design and repair process of extruder screw
Author：admin Addtion Date：2018-03-20 View：1054
The extruding system consists of screw and barrel, which is the "heart" part of the extrusion work, and the screw is used in the cylinder to carry out the process of continuous delivery, plasticization, homogenization and constant pressure. The types of screw are equal pitch pitch gradual screw, equal pitch deep mutant screw, variable depth variable pitch screw and so on. Taking the commonly used equal pitch pitch screw as an example, the structure is studied. The main features of the screw are as follows: the thread pitch of the screw is equal, while the depth of the thread groove is the same as the depth of the thread groove in the feeding section and the homogenization section, and the depth of the thread groove in the plasticizing section is gradually shallow from the depth. It is suitable for extrusion and plasticization of many kinds of plastics. The working screw length of the screw is divided into 3 basic functional sections.
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